Improvement in gates



A.,H. BETT'S.

Improvement in Gates.

No. 120,932, I Pten ted Nov-14,1871. A m A m f\ A .431 i m a F i Z 72edaf 17106717 07, /%%j m) PATENT @FFIGE.

ALFRED H. BETTS, OF CLEVELAND, OHIO.

IMPROVEMENT IN GATES.

Specification forming part of Letters Patent No. 120,932, dated November14, 1871.

To all whom it may concern:

Be it known that I, ALFRED H. Bnr'rs, of Cleveland, in the county ofGuyahoga and State of Ohio, have inven ted anew and Improved AutomaticGate, of which the following is a specificatiOn:

The nature of this invention relates to the construction and arrangementof the wheel-irons, and the method of hanging and operating the swinginglevers which actuate the gate.

In the accompanying drawing, Figure 1 is a front elevation. Fig. 2 issectional view, showing the connection of the wheel-irons with theswing-levers and a rock-shaft. Fig. 3 is a vertical section of one ofthe wheel-irons. Fig. 4 is a detached view of the upper hinge.

A in the drawing represents posts, to which the gates B B are hung.Below the surface of the ground, which is at B, and placed against theposts, are iron boxes 0 O, in which are suspended swing-levers I) D. Thetop end of levers D D terminate with a pin, upon which the gate sits. Ina suitable tube, -E,'under the ground, and connecting the two boxes O G,is placed a rod, F, upon each end of which is attached a crank, G, saidcranks playing in a slot in the lower end of the levers D. H H are boxesset in the ground, in which the wheel-irons are placed. I I are thewheel-irons, playing in suitable boxes in the sides of the boxes H H.Attached to the wheel-irons IjI is a weighted lever, J, which, when thewheel-iron is free, causes them to stand upright, as seen in the severalfigures. Upon the lever J are lugs 10 k. Upon the wheel-irons is placeda quadrant, l, which turns on the irons. The quadrants are actuated bythe lugs on the levers J J playing in the arcs of the quadrants. Thequadrants are connected to one of the cranks G by rods M M. N, seen alsoon enlarged scale in Fig. 4, is the hinge at the top of the gate, andconsists of a plate, N, to be attached to the post by screws, the platebeing provided with slots 0 0, by which the plate may be shiftedsidewise in case it is required to adjust the perpendicular of the gateshould the posts become dislocated by frost or otherwise. In the saidplate N are two eye-bolts, p p, which screw into it, so that they beadjusted in, or out, as may be required to regulate the perpendicular'of the gates in their relation to the posts. A pin, q, passed throughthe eye-bolts and the upper rail of the gate, forms the upper hinge.

The operation of the above-described gate and devices for operating itare as follows: When a carriage approaches the gate the wheel, strikingthe wheel-iron I, throws it over, carrying the quadrant with it in thedirection indicated by the dotted lines. Then, when the wheel releasesthe iron, it again assumes the upright position by the action of theweighted lever J. The quadrant pushing the rod M forward moves the crankG, and with it the lever D, which throws the bottom of the gate over andout of a perpendicular line, causing the gate to swing open, thequadrants, rods, cranks, and lever remaining in the position indicatedby the dotted line, when the opposite wheel-iron being pushed over inthe rants Z, and rods M, in combination with the cranks Gr, rod F, andswing-levers D, arranged and opera-ting substantially as and for thepurpose set forth.

A. H. BETTS. WVitnesses:

H. W. ADAMS,

GEO. W. Trenrrrs.v (52) A spring, 8, is placed in the bottom of the

